diff --git a/ERRATA.md b/ERRATA.md
index 97a7e69..e51622b 100644
--- a/ERRATA.md
+++ b/ERRATA.md
@@ -157,4 +157,8 @@ This document includes errata for the [Activity Streams](https://www.w3.org/TR/a
         }
       }
     }
-    ```
+  }
+}
+```
+
+  - In Section 4, the range of the `formerType` property is given as `Object`. The property should have the same range as the `type` property for which it forms a replacement for deleted `Tombstone` objects.